A wet bicycle tire leaves a trace of water on the floor. The tire has a radius of 14 inches, and the bicycle wheel makes 3 full rotations before stopping

Question

Im not sure how to do this its hard i been doing khan academy the whole time and it hard 

Answer 1

I assume the question is "how long is the track of water left by the tire?"  The circumference of the tire is the distance around the tire and is equal to:

 

C = 2·pi·radius

• C = circumference
• pi=3.14159
• r = radius = 14 inches

 

The track of water left on the floor by one full rotation of the tire equals one circumference in length.  If the tire rotates 3 full times, the track of water is 3 circumferences long.  Use your calculator to get the answer.